/Engine/Plugins/Animation/ControlRig/Source/ControlRigEditor/Public/ControlRigThumbnailRenderer.h
USkeletalMeshThumbnailRendererimplementation.
virtual void AddAdditionalPreviewSceneContent ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * Object, [UWorld](API\Runtime\Engine\Engine\UWorld) * PreviewWorld )